From: Daniel Baluta <daniel.baluta@nxp.com>
To: daniel.baluta@nxp.com, shawnguo@kernel.org
Cc: aisheng.dong@nxp.com, anson.huang@nxp.com,
devicetree@vger.kernel.org, festevam@gmail.com,
kernel@pengutronix.de, leonard.crestez@nxp.com,
linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com,
linux-kernel@vger.kernel.org, m.felsch@pengutronix.de,
mark.rutland@arm.com, paul.olaru@nxp.com, peng.fan@nxp.com,
robh+dt@kernel.org, shengjiu.wang@nxp.com,
sound-open-firmware@alsa-project.org,
pierre-louis.bossart@linux.intel.com, l.stach@pengutronix.de
Subject: [PATCH v3 1/5] ASoC: SOF: Add OF DSP device support
Date: Wed, 7 Aug 2019 19:42:54 +0300 [thread overview]
Message-ID: <20190807164258.8306-2-daniel.baluta@nxp.com> (raw)
In-Reply-To: <20190807164258.8306-1-daniel.baluta@nxp.com>
Add support for device tree based SOF DSP devices.
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
---
sound/soc/sof/Kconfig | 10 +++
sound/soc/sof/Makefile | 3 +
sound/soc/sof/sof-of-dev.c | 143 +++++++++++++++++++++++++++++++++++++
3 files changed, 156 insertions(+)
create mode 100644 sound/soc/sof/sof-of-dev.c
diff --git a/sound/soc/sof/Kconfig b/sound/soc/sof/Kconfig
index 5b41628ad722..73c455dacab5 100644
--- a/sound/soc/sof/Kconfig
+++ b/sound/soc/sof/Kconfig
@@ -36,6 +36,16 @@ config SND_SOC_SOF_ACPI
Say Y if you need this option
If unsure select "N".
+config SND_SOC_SOF_OF
+ tristate "SOF OF enumeration support"
+ depends on OF || COMPILE_TEST
+ select SND_SOC_SOF
+ select SND_SOC_SOF_OPTIONS
+ help
+ This adds support for Device Tree enumeration. This option is
+ required to enable i.MX8 devices.
+ Say Y if you need this option. If unsure select "N".
+
config SND_SOC_SOF_OPTIONS
tristate
help
diff --git a/sound/soc/sof/Makefile b/sound/soc/sof/Makefile
index 33c3ded2b7e2..f605a02257e7 100644
--- a/sound/soc/sof/Makefile
+++ b/sound/soc/sof/Makefile
@@ -7,6 +7,8 @@ snd-sof-objs := core.o ops.o loader.o ipc.o pcm.o pm.o debug.o topology.o\
snd-sof-pci-objs := sof-pci-dev.o
snd-sof-acpi-objs := sof-acpi-dev.o
+snd-sof-of-objs := sof-of-dev.o
+
snd-sof-nocodec-objs := nocodec.o
obj-$(CONFIG_SND_SOC_SOF) += snd-sof.o
@@ -14,6 +16,7 @@ obj-$(CONFIG_SND_SOC_SOF_NOCODEC) += snd-sof-nocodec.o
obj-$(CONFIG_SND_SOC_SOF_ACPI) += sof-acpi-dev.o
+obj-$(CONFIG_SND_SOC_SOF_OF) += sof-of-dev.o
obj-$(CONFIG_SND_SOC_SOF_PCI) += sof-pci-dev.o
obj-$(CONFIG_SND_SOC_SOF_INTEL_TOPLEVEL) += intel/
diff --git a/sound/soc/sof/sof-of-dev.c b/sound/soc/sof/sof-of-dev.c
new file mode 100644
index 000000000000..28a9692974e5
--- /dev/null
+++ b/sound/soc/sof/sof-of-dev.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+//
+// Copyright 2019 NXP
+//
+// Author: Daniel Baluta <daniel.baluta@nxp.com>
+//
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <sound/sof.h>
+
+#include "ops.h"
+
+extern struct snd_sof_dsp_ops sof_imx8_ops;
+
+/* platform specific devices */
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
+static struct sof_dev_desc sof_of_imx8qxp_desc = {
+ .default_fw_path = "imx/sof",
+ .default_tplg_path = "imx/sof-tplg",
+ .nocodec_fw_filename = "sof-imx8.ri",
+ .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
+ .ops = &sof_imx8_ops,
+};
+#endif
+
+static const struct dev_pm_ops sof_of_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
+ SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
+ NULL)
+};
+
+static void sof_of_probe_complete(struct device *dev)
+{
+ /* allow runtime_pm */
+ pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
+ pm_runtime_use_autosuspend(dev);
+ pm_runtime_enable(dev);
+}
+
+static int sof_of_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ const struct sof_dev_desc *desc;
+ /*TODO: create a generic snd_soc_xxx_mach */
+ struct snd_soc_acpi_mach *mach;
+ struct snd_sof_pdata *sof_pdata;
+ const struct snd_sof_dsp_ops *ops;
+ int ret;
+
+ dev_info(&pdev->dev, "DT DSP detected");
+
+ sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
+ if (!sof_pdata)
+ return -ENOMEM;
+
+ desc = device_get_match_data(dev);
+ if (!desc)
+ return -ENODEV;
+
+ /* get ops for platform */
+ ops = desc->ops;
+ if (!ops) {
+ dev_err(dev, "error: no matching DT descriptor ops\n");
+ return -ENODEV;
+ }
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
+ /* force nocodec mode */
+ dev_warn(dev, "Force to use nocodec mode\n");
+ mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
+ if (!mach)
+ return -ENOMEM;
+ ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops);
+ if (ret < 0)
+ return ret;
+#else
+ /* TODO: implement case where we actually have a codec */
+ return -ENODEV;
+#endif
+
+ if (mach)
+ mach->mach_params.platform = dev_name(dev);
+
+ sof_pdata->machine = mach;
+ sof_pdata->desc = desc;
+ sof_pdata->dev = &pdev->dev;
+ sof_pdata->platform = dev_name(dev);
+
+ /* TODO: read alternate fw and tplg filenames from DT */
+ sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
+ sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
+
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
+ /* set callback to enable runtime_pm */
+ sof_pdata->sof_probe_complete = sof_of_probe_complete;
+#endif
+ /* call sof helper for DSP hardware probe */
+ ret = snd_sof_device_probe(dev, sof_pdata);
+ if (ret) {
+ dev_err(dev, "error: failed to probe DSP hardware\n");
+ return ret;
+ }
+
+#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
+ sof_of_probe_complete(dev);
+#endif
+
+ return ret;
+}
+
+static int sof_of_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+
+ /* call sof helper for DSP hardware remove */
+ snd_sof_device_remove(&pdev->dev);
+
+ return 0;
+}
+
+static const struct of_device_id sof_of_ids[] = {
+#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
+ { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
+#endif
+ { }
+};
+MODULE_DEVICE_TABLE(of, sof_of_ids);
+
+/* DT driver definition */
+static struct platform_driver snd_sof_of_driver = {
+ .probe = sof_of_probe,
+ .remove = sof_of_remove,
+ .driver = {
+ .name = "sof-audio-of",
+ .pm = &sof_of_pm,
+ .of_match_table = sof_of_ids,
+ },
+};
+module_platform_driver(snd_sof_of_driver);
+
+MODULE_LICENSE("Dual BSD/GPL");
--
2.17.1
next prev parent reply other threads:[~2019-08-07 16:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-07 16:42 [PATCH v3 0/5] Add DSP node for i.MX8QXP board to be used by DSP SOF driver Daniel Baluta
2019-08-07 16:42 ` Daniel Baluta [this message]
2019-08-07 16:42 ` [PATCH v3 2/5] ASoC: SOF: imx: Add i.MX8 HW support Daniel Baluta
2019-08-07 16:42 ` [PATCH v3 3/5] ASoC: SOF: topology: Add dummy support for i.MX8 DAIs Daniel Baluta
2019-08-07 16:42 ` [PATCH v3 4/5] arm64: dts: imx8qxp: Add DSP DT node Daniel Baluta
2019-08-19 13:44 ` Shawn Guo
2019-08-07 16:42 ` [PATCH v3 5/5] dt-bindings: dsp: fsl: Add DSP core binding support Daniel Baluta
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